September Weather in Norderney, Germany

Last updated: February 26, 2025

September brings a moderate shift in Norderney, Germany, as temperatures vary from a mild 11°C (51°F) at night to a comfortable 25°C (77°F) during the day. The month averages around 16°C (61°F), offering a pleasant climate for outdoor activities. However, visitors should be prepared for occasional showers, with 92 mm (3.6 in) of rain spread over 13 days, leading to a humidity level of 83%. This combination ensures a refreshing coastal atmosphere, perfect for enjoying the island's scenic beauty amidst the changing of the seasons.

September Temperature in Norderney

In September, Norderney begins to transition from summer warmth to the cooler embrace of autumn. With minimum temperatures around 11°C (51°F), the island still retains a touch of summer's warmth, making it a pleasant time for outdoor activities. The average temperature reaches 16°C (61°F), while highs can soar to 25°C (77°F), resembling the lingering summer vibes. However, as the month progresses, the nights grow cooler, hinting at the upcoming seasonal shift. This combination of mild days and cooler evenings creates an inviting atmosphere, perfect for exploring the island's natural beauty before the winter chill sets in.

September Weather in Norderney: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Norderney, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414042465260636561554743
Data source: Temperature data for Norderney generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Norderney

In September, Norderney experiences a notable shift in precipitation, with 92 mm (3.6 in) of rain falling over an average of 13 days. This marks a slight decrease from the peak of August, which recorded 108 mm (4.3 in) despite having more rainy days. As summer gives way to autumn, the weather becomes increasingly damp, setting the stage for the wetter months ahead. The gradual rise in precipitation from July's 89 mm shows a clear trend, indicating that as the year progresses, Norderney's landscape is transformed by nature's refreshing touch, reminding residents and visitors alike of the island's dynamic climate.

September Precipitation Trends in Norderney

The chart displays monthly precipitation patterns in Norderney, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec77727144546789108921217795
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Norderney

In September, Norderney, Germany, experiences a refreshing shift in humidity, with levels averaging 83%. This marks a notable increase from the 75% seen in the summer months of July and August, signaling the onset of autumn. Interestingly, the humidity during September is still lower than the peak levels observed during winter, where figures hover around 86% to 88%. As the year progresses, humidity tends to rise again in the cooler months, creating a rhythmic pattern of moisture that characterizes this coastal paradise. The transition from summer's drier air back to a more humid environment reflects the changing seasons, inviting a fresh perspective on the island's unique climate.

September Average Humidity in Norderney

This chart illustrates the average monthly humidity levels in Norderney, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%86%84%80%75%75%75%83%86%87%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Norderney

In September, the UV Index in Norderney, Germany returns to a moderate level of 5, indicating that sun protection becomes important, though not as critical as during the peak summer months. As the weather transitions into autumn, the burn time is approximately 30 minutes, allowing for enjoyable outdoor activities with a sensible approach to sun safety. This drop from the high indices seen in May to August reflects the changing seasons, highlighting a trend of decreasing UV exposure as the year progresses. For more detailed information on sun safety throughout the year, check out the Norderney UV Index.

Maximum UV Index Levels in Norderney for September

The chart shows the monthly maximum UV Index (UVI) for Norderney in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec123578775321
Data source: Norderney September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Norderney

September in Norderney, Germany, offers a delightful transition from the vibrant summer months to the tranquil beauty of autumn. With 316 hours of sunshine, this month stands out as a sun-kissed period, showcasing a notable decline from the peak summer heat but still providing ample opportunities for outdoor enjoyment. The trend of decreasing sunshine hours begins after the sun-drenched July, creating a gentle descent that invites visitors to savor the softer light and the changing colors of nature. Despite the decline, September remains brighter than the dreary winter months, hinting at the lasting warmth of late summer and perfect for beach strolls or exploring the island's lush landscapes.

Monthly Sunshine Duration in Norderney: September Highlighted

The September sunshine duration represents the total number of hours Norderney experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec100h195h281h359h412h407h418h394h316h245h182h129h
Data source: Norderney September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Norderney During September

In Norderney, Germany, the chances of sunny weather in September stand at 33%, reflecting a slight dip compared to the spring and early summer months. After a promising start to the year with brighter skies in March and April—where sunny days approach nearly half the month—the likelihood of sunshine fluctuates through the warmer season. July and August experience a modest decline, yet September continues this trend, aligning with the patterns observed in May and June. As the lingering warmth of summer wanes and autumn approaches, visitors can still hope for some sunny spells, while preparing for the more subdued weather typical of the following months.

Percentage of Sunny Days in September in Norderney

The chart illustrates the percentage of sunny days in Norderney throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Norderney experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%25%36%46%30%39%33%35%33%28%19%21%
Data source: Norderney September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Norderney in September

In September, Norderney, Germany, experiences a gentle transition as daylight hours begin to wane, offering about 12 hours of sunshine—a notable drop from the summer peak of 16 hours in July and June. This shift marks the beginning of autumn, where the longer days of May and June gradually yield to the shorter days that characterize the later months of the year. With daylight decreasing steadily from the sun-drenched days of summer, September sets the stage for the cozy embrace of fall, inviting both reflection and anticipation for the winter ahead. As nature prepares for change, the island's scenic beauty continues to shine through the softer sunlight, creating a captivating backdrop for exploration and tranquility.

Average Daylight Hours in Norderney for September

The chart illustrates the variation in daylight duration in Norderney throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 4m9h 48m11h 54m14h 3m15h 57m16h 57m16h 25m14h 42m12h 37m10h 29m8h 34m7h 31m
Data source: Norderney daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Norderney

In September, Norderney experiences a gentle average wind speed of 5.5 m/s (12 mph), marking a shift from the more vigorous gusts of summer. This decrease follows a steady decline from the spring's breezy 6.8 m/s (15 mph) in April and the peak summer winds of 6.6 m/s (15 mph) in August. The transition into autumn is evident, as the wind lulls in preparation for the blustery conditions that characterize the later months. As temperatures cool, the winds will inevitably pick up, as seen with an increase to 7.9 m/s (18 mph) in October, highlighting Norderney's dynamic climatic rhythm.

Average September Wind Speed in Norderney

The chart displays monthly wind speed patterns in Norderney, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec6.97.36.76.86.04.65.36.65.5 m/s7.97.07.0
Data source: Norderney September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Norderney Compares to Other Months

The weather in Norderney changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Norderney and find detailed weather information for every month.

In September, the weather is relatively mild with average temperatures ranging from a minimum of 11°C (51°F) to a maximum of 25°C (77°F), making it a pleasant month for outdoor activities. The humidity level is notably high at 83%, and the month sees an average of 92 mm (3.6 in) of precipitation over 13 days. In contrast, January brings much colder conditions, with average temperatures between -4°C (25°F) and a maximum of 11°C (52°F). Although it is drier with 77 mm (3.0 in) of precipitation over 15 days, the humidity rises slightly to 88%, contributing to a brisk and often chilly atmosphere. For more detailed information about January conditions, you can check Norderney weather in January.

September and February exhibit contrasting weather patterns that highlight the transition from late summer to winter. In September, temperatures range from a minimum of 11°C (51°F) to a maximum of 25°C (77°F), with an average of 16°C (61°F). This month experiences a significant amount of precipitation, totaling 92 mm (3.6 in) over 13 days, while humidity levels hover around 83%. In contrast, February is much colder, with temperatures dropping to a minimum of -6°C (22°F) and peaking at 12°C (54°F), averaging just 4°C (40°F). Although it has slightly less precipitation at 72 mm (2.8 in) also over 13 days, the humidity is slightly higher at 88%. For a detailed look at the weather specifics in February, you can check out Norderney weather in February.

When comparing the weather in September and March, notable differences emerge in temperature and overall climate. September typically enjoys milder temperatures, with an average of 16°C (61°F) and maximums reaching 25°C (77°F), while March is much cooler, with an average of only 5°C (42°F) and highs of just 13°C (56°F). Precipitation is somewhat higher in September at 92 mm (3.6 in) over 13 days, compared to March's 71 mm (2.8 in) across 12 days. Humidity levels are similar, with September at 83% and March slightly higher at 86%. For a closer look at the conditions in March, you can explore Norderney weather in March.

When comparing the weather in September and April, September generally shows a more pleasant climate with temperatures ranging from a minimum of 11°C (51°F) to a maximum of 25°C (77°F) and an average of 16°C (61°F). In contrast, April experiences cooler temperatures, with a low of 2°C (35°F), an average of 8°C (46°F), and a high of 17°C (63°F). While September sees more rainfall, recording 92 mm (3.6 in) across 13 days, April has significantly less precipitation at only 44 mm (1.7 in) over 9 days. Both months share similar high humidity levels, around 83% in September and 84% in April, making the air feel relatively moist. For more detailed information, you can check Norderney weather in April.

In comparing the weather of September and May, September tends to be warmer overall, with average temperatures reaching 16°C (61°F) compared to May's 11°C (53°F). While both months experience a similar number of rainy days, September sees higher precipitation levels at 92 mm (3.6 in), contrasted with May's 54 mm (2.1 in). Humidity levels are slightly higher in September at 83%, compared to 80% in May. For those interested in more details about May weather, you can visit Norderney weather in May.

In comparing the weather of September to that of June, we can see some notable similarities and differences. Both months have an average temperature around 16°C (61°F), with September peaking at a maximum of 25°C (77°F) and June slightly higher at 25°C (78°F). However, September experiences more precipitation, totaling 92 mm (3.6 in) over 13 days, compared to June's 67 mm (2.6 in) across 11 days, indicating that September tends to be wetter. Humidity levels also differ, with September averaging 83%, whereas June is relatively drier at 75%. For a more in-depth look at June weather specifics on Norderney, you can visit Norderney weather in June.

September weather features slightly cooler temperatures compared to July, with minimums around 11°C (51°F) and an average of 16°C (61°F), while July has a minimum of 13°C (55°F) and an average of 17°C (63°F). Both months experience comparable levels of precipitation, with September receiving 92 mm (3.6 in) over 13 days and July seeing 89 mm (3.5 in) across the same number of days. However, September tends to feel more humid at 83%, while July has a lower humidity level of 75%. For more detailed information on July weather, visit Norderney weather in July.

In comparing the weather between September and August, September tends to be slightly cooler, with average temperatures dropping from 18°C (65°F) in August to 16°C (61°F) in September. The maximum temperature remains consistent at 25°C (77°F), but the minimum temperature decreases from 13°C (55°F) in August to 11°C (51°F) in September. Precipitation also plays a role, with September experiencing 92 mm (3.6 in) over 13 days, compared to August's higher rainfall of 108 mm (4.3 in) over 17 days. Additionally, September brings increased humidity at 83%, while August has a lower humidity level of 75%. For more detailed information, you can visit Norderney weather in August.

September typically offers a milder climate with average temperatures reaching up to 25°C (77°F), while October sees a notable drop, with average temperatures around 13°C (55°F). Precipitation increases from 92 mm (3.6 in) over 13 days in September to 121 mm (4.7 in) over 18 days in October, indicating a wetter month ahead. Humidity also rises slightly, from 83% in September to 86% in October, contributing to a more pronounced chill in the air. For more specific details, you can check Norderney weather in October.

September weather tends to be milder, with temperatures ranging from a minimum of 11°C (51°F) to a pleasant maximum of 25°C (77°F), averaging around 16°C (61°F). This month sees significant rainfall, with a total of 92 mm (3.6 in) over approximately 13 days and an average humidity of 83%. In contrast, November brings cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 17°C (62°F), averaging just 9°C (48°F). While November experiences slightly less precipitation at 77 mm (3.0 in), it is spread over more days (17 days), contributing to a higher humidity level of 87%. To learn more about this month's weather, check Norderney weather in November.

In September, the weather is generally milder, with temperatures ranging from a minimum of 11°C (51°F) to a maximum of 25°C (77°F) and an average of 16°C (61°F). The month experiences about 92 mm (3.6 in) of precipitation over 13 days, alongside a comfortable humidity level of 83%. In contrast, December brings a significant drop in temperatures, with minimums dipping to -2°C (29°F), an average of 6°C (43°F), and maximums reaching only up to 11°C (52°F). Precipitation remains relatively similar, at 95 mm (3.8 in), but spans over 18 days, accompanied by a slight increase in humidity to 86%. For more detailed insights about December's climate, check out Norderney weather in December.

Compare Norderney's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Norderney

As September unfolds on Norderney, the transition into autumn becomes evident, bringing a flavorful mix of mild temperatures and increased moisture. This month showcases a delightful blend of sunny days and refreshing breezes, making it distinct from the hotter summer months. While temperatures are still pleasantly warm, the air carries a slight chill in the evenings, signaling the changing season. With a notable amount of rainfall throughout the month, visitors can expect a refreshing landscape, albeit with some damp days. This combination of mild weather and increased humidity may enhance the island's lush scenery, inviting travelers to explore its natural beauty. For a deeper understanding of what to expect throughout the year, visit Norderney Climate.